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Index
»
Biology full course tests (mistakes)
»
Chapter 1
»
level 2
level: level 2
Questions and Answers List
level questions: level 2
Question
Answer
carbohydrates in the chyme are hydrolysed by which enzyme into disaccharides
pancreatic amylase
rennin and pepsinogen are secreted in
stomach
the common passage for food and air is
phrynx
which glands are found in submucosa of duodenum
brunner's gland
trachea get divided into left and right primary bronchi at the level of
5th thorasic vertebra
time interval between the closure of semilunar valve and closure of AV valve respectively is
0.5 sec
blood supply to heart musculature is via
coronary artery
coronary artery disease, (CAD) often referred to as
Atherosclerosis
Carbohydrates which present in the cell membrane take part in
Cell recognition
cartwheel structure
9+0
Frame work elements of plant cell
Carbon, Hydrogen and Oxygen
During different stages of cell division, cell show ............. in place of the nucleus. A single human cell has approximately ............ meter long thread of DNA distributed among its ......... chromosomes
Chromosomes, 2, 46
Meiosis has evolutionary significant because it result in
recombinations
If a diploid cell has 16 tetrads, then what will be the number of chromosome in a cell at anaphase-I and anaphase-II respectively
32, 32
How many carbon atoms are generally used in composition of monosaccharides
3 to 7
Which of following is example of epimer ?
β – D – glucose and β – D – mannose
Choose the incorrect option for given diagram
A - Nucleus,B - Nuclear pore C - RER,D - Ribosome E - SER
Which of the following compound is absent in acid insoluble pool ?
Monosaccharide
Which of the following is not a constituent of DNA
Ribose sugar
in some plants thalamus contributes to fruit formation. such fruits are called
false fruits
chromosomal theory of inheritance was proposed by
sutton and boveri
phycoerythrin is the major pigment in
red algae
in recombinant DNA technology antibiotics are used
as selectable markers
in the polynucleotide chain of DNA, a nitrogenous base is linked to the -OH of
1'C pentose sugar
in glycine max, the product of biological nitrogen fixation is transported from the root nodules to other parts as
ureides
the number of contrasting characters studied by mendel for his experiments was
7
attachment of spindle fibers to kinetochores of chromosomes become evident in
metaphase
match them 1)aquaporin 2)asparagine 3)abscisic acid 4)chitin
1)polypeptide 2)amide 3)carotenoids 4)polysaccharide
which of the following elements helps in maintaining the structure of ribosome
magnesium
who coined the term kinetin
skoog and miller
embryological support for evolution was proposed by
ernst heckel
inclusion bodies of blue-green, purple and green photosynthetic bacteria are
gas vacuoles
inhibitory substances in dormant seeds cannot be removed by subjecting seeds to
ascorbic acid
male and female gametophytes do not have an independent free living existance in
angiosperms
match fruit ripener herbicides bolting agent stress hormone
ethephon 2,4-D GA3 abscisic acid
pyruvate dehydrogenase activity during aerobic respiration requires
magnesium
spooling is
collection of isolated DNA
the phenomenon of evolution of different secies in a given geographical area starting from a point and spreading to other habitats is called
adaptive radiation
the best example for pleiotropy is
phenylketoneuria
intrinsic factor that helps in the absorption of vitamin B12 is secreted by
oxyntic cells
hormones stored and released from neurohypohysis are
oxytocin and vasopressin
in human beings, at the end of 12 weeks of pregnancy , the following is observed
most of the major organ systems are formed
the proteolytic enzyme rennin is found in
gastric juice
cyclosporin A, used as immuno suppression agent, is produced from
trichoderma polysporum
grinding of the food particles secrete gastric juice 10 pairs anal cerci
proventricular hepatic caecal spiracles 10th segment
what is associated with decrease in cardiac output
parasympathetic neural signals
the laws and rules to prevent unauthorised exploitation of bio-resources are termed as
biopaternting
what conditions cause erythroblastosis foetalis
mother Rh-ve and foetus Rh+ve
which of the following cell organelles is present in the highest number in secretory cells
golgi complex
non-membranous nucleoplasmic structures in nucleus are the site for active synthesis of
rRNA
which of the following nucleic acids is present in an organism having 70s ribosomes only
double stranded circular naked DNA
after meiosis-I, the resultant daughter cells have
twice the amount of DNA in comparison to haploid gamete
which of the following organic compound is the main constituent of lecithin
phospholipid
what will be the sequence of mRNA produced by the following stretch of DNA 3'ATGCATGCATGCATG5' TEMPLATE STRAND 5'TACGTACGTACGTAC3' CODING STRAND
5'UACGUACGUACGUAC3'
the two antibiotic resistance genes on vector pBR322 are
ampicillin and tetracycline
RNA polymerase with their transcribed products; RNA polymerase I RNA polymerase II RNA polymerase III
rRNA hnRNA tRNA
a population of a species invades a new area. which of the following condition will lead to adaptive radiation
area with many types of vacant habitats
label
A-protien hormone, B-receptor, C-cyclic AMP
humans have aquired immune system that produces antibodies to neutralize pathogens. still innate immune system is present at the time of birth because it
has natural killer cells which can phagocytose and destroy microbes
match the following joints with the bones involed; 1)between carpals 2)between humerus and ulna 3)between atlas and axis 4)between carpal and metacarpal of thumb
gliding joint, hinge joint pivot joint and saddle joint
artificial light, extended work time and reduced sleep time disrupt the activity of
pineal gland
which of the following conditions will stimulate parathyroid gland to release parathyroid hormone
fall in blood Ca+2 levels